Hawkins electrical guide. Questions, answers & illustrations; a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833- · New York, T. Audel · leaf 200
erposed,while sufficient to prevent the regular working current jumpingacross, is not great enough to interfere with a lightning dischargewhich readily jumps the gap and passes off to earth. 888 HAWKINS ELECTRICITY Oues. Why are teeth provided on the plates? Ans. For the same reason that points are… … Fig. 1.041.—Mason jnulti-discharge lightning arrester. The construction of this arrester isbased on the well known principle that lightning discharges more readily at points or anglesthan elsewhere. The wire is wound around square carbon rods, which are connected tothe ground, the line being…
Electrical engineering
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